500 years ago, Cheon Sang-hyuk, a fairy who had no ties to humans, ignored the warnings of Samsin and fell in love with a human girl. As a punishment, his wings got burnt off and he lost his beloved woman. 500 years later, since he well understands the pain of being alone, he empathizes with Baek-ryeon and eagers to help her out. So he starts by asking her what her ideal type is.

Sang-hyuk begins to suspect that the culprit in the Inwangsan missing girl case and the 1993 missing high school girl case are the same person. Baek-ryeon is upset because Sanghyuk tries to set her up with a random man while she has a crush on none other than Sanghyuk himself. At last, after climbing Mt. Inwang a thousand times, she gets to meet the man of destiny.

Sang-hyuk and Jae-hee learn that Baek-ryeon was a witness to the Inwangsan disappearance incident. In order to protect Baek-ryeon, Sang-hyuk chases down the criminal like her knight in shining armor. Baek-ryeon is happy when Sang-hyuk protects her like Superman and doesn't get hurt even after the intense physical fight, and she gets very curious about his true identity.